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Mama; 8, 193

NIPPLE FOR NURSING BOTTLES Filed Jan. 23, 1929 Z/A/I/E/VTO/Q %/e w A C. 4,76%).

' M. c. LASKY 1,848,533

Patented Mar. 8, 1932 AT NT orricr.

MEBVYN C. LASKY, OF HOLLYWOOD, CALIFORNIA NIPPLE FOR NURSING BOTTLES Application filed January 23, 1929. Serial 110.33%,510.

My invention relates to a nipple for nur ing bottles and has for its principal objects the provision of a relatively simple and inexpensive nipple having an outlet opening that cannot be closed as a result of pressure on the nipple while the same is in use, further to provide a nipple that will insure a constant and uniform flow of liquid through the outlet opening or orifice while said nipple is in use, and further to provide a nipple of the character referred to that may be readily cleansed and maintained in a sanitary condition.

Ordinary nursing bottles are formed of rubber or rubber composition and when pressure is applied to the nipple by the nursing infant it very frequently happens that the outlet aperture becomes closed, or partially closed, so as to interrupt the constant flow or discharge of liquid from the nursing bottle and it is one of the objects of my invention to provide a relatively simple arrangement in the nature of a reinforcement for the outlet opening of the nipple for eliminating the defects just noted.

With the foregoing and other objects in view my invention consists in certain novel features of construction and arrangement of parts that will hereinafter be more fully described and claimed and illustrated in the accompanying drawings, in which:

Fig. 1 is a perspective view of a nipple constructed in accordance with my invention.

Fig. 2 is a perspective view of the reinforcing member that is arranged in the outlet. opening of the nipple.

Fig. 3 is an enlarged cross sectional view taken approximately on the line 3-3 of Fig. 1.

rubber composition, the base or lower portion of the nipple body being enlarged so as to be fitted onto the neck of the nursing bottle.

Formed in the apex or upper end of the nipple is the usual out-let aperture 11, and in accordance with my invention there is imbedded in the upper body of the nipple immediately adjacent to its opening a disk 12 which is preferably concavo-convex in shape in order to conform to the curvature of the body of the nipple adjacent to the outlet aperture.

Formed in the disk 12 are apertures 18, and when the disk is inserted in the nipple during-the process of manufacture, a portion of the rubber fills these apertures, thereby very firmly anchoring the disk in the nipple body at the desired point.

Formed integral with the central portion of the disk 12 is a small inverted cup-shaped member 1 that projects upwardly through the upper portion of the outlet aperture 11 and the top 15 of the member 1% lies flush with the outer surface of the apex or upper end of the nipple body.

Formed in the top 15 of the member 14L are relatively small apertures 16 through which the fluid passes while the nipple is in service.

Disk 12 and the inverted cup-shaped member 14 are preferably formed of non-corrodible metal, for instance gold or gold-plated base metals, and in some instances said disk and member may be formed of material such as celluloid or hard rubber.

In Fig. l I have illustrated a construction wherein a short tubular member 17 of noncorrodible metal or material such as rubber or celluloid is removably arranged in the aperture in the end of the nipple and formed on the lower end of this tubular member is a flange 18 that fits snugly against the inner surface of the wall of the nipple around the outlet aperture.

Formed integral with the outer end of the tubular member 17 is a perforated disk 19 and the edge thereof is extended slightly beyond the tubular wall of the member 17 to form a flange 20 that overlies the outer surface of the body of the nipple adjacent to the opening. therethrough. I

tained in a sanitary condition.

- The member 17 and parts 18 and 19 are preferably formed from a single piece of noncorrodible metal or from material such as celluloid or hard rubber, and this form of device is adapted to bereadily inserted through or removed from the aperture in the apex or upper endof the nipple body. Owing to the relative sizes of the flange 18 and the opening in which the tubular body 17 is seated, itis impossible for the member 17 to be drawn body around the opening therein and which flange isprovided with apertures that are occupied by the elastic material of which the nipple body is formed.

In testimony whereof I aflix my signature.

' MERVYN' C. LASKY.

closed, as a result of pressure upon the nipple 1 while the same is in service, and said apertures being formed in relatively hardvmaterial so as to insure a constant flow of fluid from. the nipple. I

The fluid flow controlling member that is seated in the nipple in no wise interferes with the nursing operations, but on the other hand provides for a constant flow of a predeterf mined volume of fluid from the nipple while the same is in service,and the inserted member is non-corrodible and may be very readily cleansed with the nipple and therefore main- It will be understood that minor changes in the size, form and construction of the various parts of my improved nipple for nursing bottles may be made and substituted for those herein shown and described without departing from the spirit of my invention, the scope of which is set forth in the appended claim.

I claim as my invention:

A nursing bottle nipple,"comprising a nip ple body formed of elastic material and provided at its tip with an opening, an inverted I cup-shaped member of inflexible material imbedded in the tip of the nipple above said opening, the chamber within which cupshaped member and the opening in the tip of the nipple having the same diameter so as to provide a continuous chamber having a smooth inner surface, the top plate of said inverted cup-shaped member being provided with a plurality of apertures, the outer surface of which perforated top. plate is flush with the outer surface of the tip of the nipple, a downwardly curved flange integral I with thelower 'edgeof the circular wall of the inverted cupshaped' member, the curvature of which flange coincides with the curvature of the wall in the apex. portion of the nipple body, said flange being imbedded in the wallof the apex portion of the nipple 

